Résumé de section

  • Working with Dynamic Crop Models, 3rd Edition. Methods, Tools and Examples for Agriculture and Environment.

    Authors : Daniel Wallach (INRA), David Makowski (INRA), James Jones (U. Florida) et François Brun (ACTA)

    Release Date:

    Une production du RMT Modélisation et Analyse de Données pour l'Agriculture

  • Detailed explanations and descriptions of methods for working with dynamic system models in crop and agricultural sciences, including real-world examples and computer code.

    ZeBook3 cover

    Presents detailed explanations and descriptions of the latest methods for working with dynamic systems models, including real-world examples and computer code


    • An expanded introductory section presents the basics of dynamic system modeling, with numerous examples from multiple fields, plus chapters on numerical simulation, statistics for modelers and the R language.
    • Covers in detail the basic methods; uncertainty and sensitivity analysis, model calibration (both frequentist and Bayesian), model evaluation and data assimilation.
    • Every method chapter has numerous examples of applications, based on real problems as well as detailed instructions for applying the methods to new problems using R.
    • Each chapter has multiple exercises, for self-testing or for classroom use.
    • An R package with much of the code from the book can be freely downloaded from the CRAN package repository.


    Working With Dynamic Crop Models: Methods, Tools and Examples for Agriculture and Environment 3e is a complete guide to working with dynamic system models, with emphasis on models in agronomy and environmental science. The introductory section presents the foundational information for the book including the basics of system models, simulation, the R programming language and the statistical notions necessary for working with system models. The most important methods of working with dynamic system models, namely uncertainty and sensitivity analysis, model calibration (frequentist and Bayesian), model evaluation and data assimilation are all treated in detail, in individual chapters.

     New chapters cover the use of multi-model ensembles, the creation of meta-models that emulate the more complex dynamic system models, the combination of genetic and environmental information in gene-based crop models and the use of dynamic system models to aid in sampling.

     The book emphasizes both understanding and practical implementation of the methods that are covered. Each chapter explains simply and clearly the underlying principles and assumptions of each method that is presented, with numerous examples and illustrations. R code for applying the methods is given throughout. This code is designed so that it can relatively easily be adapted to new problems.

    AUDIENCE:  Researchers and advanced students in agronomy, agricultural and biological engineering, agricultural economics and agricultural statistics

  • The ZeBook package is an R library containing material related to this book. It includes the code for many of the examples that are treated in this book (so that you can run them yourself), including the main models that are used as examples, and data sets for the exercises.

    You can install the ZeBook package from the CRAN repository, if you have an internet connection, by following the instructions:

    1. click on "Packages" in the R menu bar and select "Install package(s)…".
    2. choose a location near you in the list of mirror sites for downloading which will appear.
    3. choose "ZeBook" in the list of available packages.
    4. verify that there is a message in the console window indicating that installation was successful.

    Functions and demos in the ZeBook package
    The package will continue to evolve over time, with the addition of new models and data sets useful for testing the methods presented in this book. The last version 1 was released 2018-03-13.

    See index of help(ZeBook) for a complete and up to date listing. You can access to a pdf version of the documentation on the cran.

    To cite package ‘ZeBook’ in publications use:
    Francois Brun, David Makowski, Daniel Wallach and James W. Jones. (2018). ZeBook: ZeBook Working with dynamic models for agriculture and environment. R package version 1.0. http://CRAN.R-project.org/package=ZeBook

    • Chapiter 3. The R programming Language and Software